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Cheap flights from Sydney to Phnom Penh from $1,302

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PNH
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Phnom Penh Pochentong are usually found in July or February, booked 88 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Sydney to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 September 2025.

Round-trip from

$2,381

One-way from

$1,302

Popular in

December

Cheapest in

July

Average price

$895
2/11-18/11
  • 2/11-18/11
  • 6 total stops
  • 78h 40m total
  • Sydney to Phnom Penh
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16/10
  • 16/10
  • 3 total stops
  • 36h 40m total
  • Sydney to Phnom Penh
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($392 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($88 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Sydney to Phnom Penh

Cheapest flights from Sydney to Phnom Penh
Explore the most affordable flight options available from Sydney to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Sun 2/1110:45SYD - PNH
3 stops47h 45mMultiple Airlines
Tue 18/1107:55PNH - SYD
3 stops30h 55mMultiple Airlines
Deal found 15/9$2,381
Sat 25/1022:15SYD - PNH
3 stops36h 15mMultiple Airlines
Sat 8/1119:50PNH - SYD
3 stops43h 00mMultiple Airlines
Deal found 15/9$2,797
Sat 1/1110:45SYD - PNH
3 stops47h 45mMultiple Airlines
Tue 18/1107:55PNH - SYD
3 stops30h 55mMultiple Airlines
Deal found 15/9$2,922
Thu 30/1022:15SYD - PNH
3 stops36h 15mMultiple Airlines
Thu 6/1119:50PNH - SYD
3 stops43h 00mMultiple Airlines
Deal found 14/9$3,187
Fri 31/1010:45SYD - PNH
3 stops35h 40mMultiple Airlines
Fri 7/1107:55PNH - SYD
3 stops45h 20mMultiple Airlines
Deal found 15/9$3,362
Wed 5/1121:50SYD - PNH
3 stops36h 40mMultiple Airlines
Thu 18/1219:50PNH - SYD
3 stops36h 05mMultiple Airlines
Deal found 15/9$3,401

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Sydney to Phnom Penh that are best for you.

Fly from

Sydney

Fly to

Phnom Penh

Route

Depart

Return

Price

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sun 2/11

10:45-06:30

3 stops47h 45m

Phnom Penh Pochentong

Tue 18/11

07:55-18:50

3 stops30h 55m

$2,381

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sat 25/10

22:15-06:30

3 stops36h 15m

Phnom Penh Pochentong

Sat 8/11

19:50-18:50

3 stops43h 00m

$2,797

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Thu 30/10

22:15-06:30

3 stops36h 15m

Phnom Penh Pochentong

Thu 6/11

19:50-18:50

3 stops43h 00m

$3,187

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Fri 31/10

10:45-18:25

3 stops35h 40m

Phnom Penh Pochentong

Fri 7/11

07:55-09:15

3 stops45h 20m

$3,362

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Wed 5/11

21:50-06:30

3 stops36h 40m

Phnom Penh Pochentong

Thu 18/12

19:50-11:55

3 stops36h 05m

$3,401

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Tue 21/10

13:50-06:55

3 stops45h 05m

Phnom Penh Pochentong

Tue 28/10

07:55-20:35

3 stops32h 40m

$4,450

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Thu 16/10

22:15-06:55

3 stops36h 40m

$1,302

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Sun 15/3

10:45-06:30

3 stops47h 45m

$1,377

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Fri 14/11

10:45-18:25

3 stops35h 40m

$1,500

SydneyPhnom Penh

SYD - PNH

SYDPNH

Sydney Kingsford Smith

Tue 9/12

21:50-18:25

3 stops48h 35m

$1,546

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 13 results
1
2

Best time to book a flight from Sydney to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Phnom Penh

How far ahead should I book a flight from Sydney to Phnom Penh?

Use this chart to determine the optimal time to book a return flight from Sydney to Phnom Penh. Price data was last updated on 12 September 2025.

To ensure you get the cheapest price possible for a flight from Sydney to Phnom Penh, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Sydney to Phnom Penh?

Currently, February is the cheapest month in which you can book a flight from Sydney to Phnom Penh (average of $535). Flying from Sydney to Phnom Penh in December is currently the most expensive (average of $1,028). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to PNH?

Find hourly flight availability from Sydney to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Phnom Penh at midday. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Sydney to Phnom Penh?

Use this chart to determine the cheapest time to fly return from Sydney to Phnom Penh. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Sydney to Phnom Penh flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from Sydney to Phnom Penh?

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated 17 September 2025.
Read through reviews of airlines operating flights from Sydney to Phnom Penh, such as Singapore Airlines, Cathay Pacific, andVietnam Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very Good
1,365 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Cathay Pacific
7.6
Good
993 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Vietnam Airlines
7.6
Good
201 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
China Southern
7.5
Good
110 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Malaysia Airlines
7.3
Good
278 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.7

Comfort

8.0

Overall

8.1

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Sydney to Phnom Penh round-trip?

    Currently priced at $645, XiamenAir will fly you from Sydney to Phnom Penh and back. In addition to XiamenAir, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and Malaysia Airlines - these airlines can fly you to your destination from $656 and $674, respectively. XiamenAir is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • Where are the most common stopover locations when flying from Sydney to Phnom Penh?

    Most of the time, Sydney to Phnom Penh flights that have stopovers will stop in Singapore. Singapore is followed by Guangzhou in terms of the most popular stopover location on flights from Sydney to Phnom Penh. Hong Kong sees the third most stopovers on flights from Sydney to Phnom Penh.

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Sim Lim Square are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Sim Lim Square can be visited by traveling about 21.6 km, 16.9 km, and 16.3 km respectively from Singapore Changi. Those landing in Singapore looking to spend some time exploring during their stopover can hire a car for about $127 per day.

  • What are points of interest worth seeing during a stopover in Hong Kong?

    Most Hong Kong visitors opt to spend their time at Hong Kong Disneyland, Hong Kong Heritage Discovery Centre, and Hong Kong Zoological and Botanical Gardens. Hong Kong Disneyland, Hong Kong Heritage Discovery Centre, and Hong Kong Zoological and Botanical Gardens can be accessed by travelling approximately 12.6 km, 25.8 km, and 24.7 km, respectively from Hong Kong Intl.

  • Where are the least popular stopover locations for Sydney to Phnom Penh flights?

    Sydney to Phnom Penh flights that have stopovers will least frequently stop in Ho Chi Minh City. Kuala Lumpur is the second least popular location for stopovers on flights from Sydney to Phnom Penh.

  • Can I find deals for flights from Sydney to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Sydney to Phnom Penh flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Phnom Penh.

  • Can I find deals for business class flights from Sydney to Phnom Penh?

    Yes. Cheapflights offers flight deals from Sydney to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Phnom Penh?

    Currently, February is the cheapest month in which you can book a flight from Sydney to Phnom Penh (average of $535). Flying from Sydney to Phnom Penh in December is currently the most expensive (average of $1,028). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Fly from Sydney to Phnom Penh on these airlines

Choose from the following airlines for your flight from Sydney to Phnom Penh. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2025.
Singapore Airlines flights from Sydney Kingsford Smith to Phnom Penh Pochentong
Malaysia Airlines flights from Sydney Kingsford Smith to Phnom Penh Pochentong
Vietnam Airlines flights from Sydney Kingsford Smith to Phnom Penh Pochentong

Top 10 airlines flying from Sydney to Phnom Penh

Discover the top 10 airlines that operate flights from Sydney to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
XiamenAirCheapest$645Average$857FlexibilityNo cancel feeOn-time49%
Search XiamenAir flights
China SouthernCheapest$658Average$1,065FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Malaysia AirlinesCheapest$674Average$1,005FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Vietnam AirlinesCheapest$688Average$804FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$704Average$995FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Philippine AirlinesCheapest$731Average$903FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China EasternCheapest$805Average$944FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Virgin AustraliaCheapest$823Average$1,142FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Cathay PacificCheapest$900Average$1,264FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest$1,008Average$1,393FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Phnom Penh?

Deals for Sydney to Phnom Penh flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Phnom Penh?

Cheapflights helps you find that perfect flight to Phnom Penh from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Sydney to Phnom Penh with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Phnom Penh flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Phnom Penh become cheaper?

Of course! You can now track prices for flights from Sydney to Phnom Penh and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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